Naugolnykh K.

The stormy area in the ocean radiates sound into the ocean and in the atmosphere in a low frequency band. This noise radiation can be observed at a distances of thousands of miles from the source. The effect of sound radiation is connected apparently to the interaction of the counter-propagating sea-surface waves that produces a sound radiation of the doubled frequency of the surface wave oscillation. [1]. The radiated sound due to diffraction effects is trapped by the horizontal atmospheric wave-guide that provides the long distance propagation. Theoretical model of the sound generation by the sea - surface waves is developed on the basis o f the advanced theoretical approach [2]. The spectrum of sound radiation is presented as a function of the sea – surface wave features. The diffraction effects are taken into account to evaluate the trapping of the radiation by a horizontal atmospheric wave-guide, important for the long-range propagation of the noise. References 1. Longuet-Higgins, M. S., “ A theory of the origin of microseisms” 3. Naugolnykh, K. A., and Rybak, S. A., 2003: “Sound generation due to the interaction of surface waves”, Acoustical Physics, 49, 88-90.